Non-Heisenberg Anisotropic Ferrimagnet

Autor:	Yu. A. Fridman, A. V. Krivtsova, Ya. Yu. Matyunina
Rok vydání:	2020
Předmět:	Physics Phase transition Magnetic moment Condensed matter physics Exchange interaction General Physics and Astronomy 01 natural sciences Condensed Matter::Materials Science Ferrimagnetism 0103 physical sciences Condensed Matter::Statistical Mechanics Condensed Matter::Strongly Correlated Electrons Ising model Tensor 010306 general physics Anisotropy Spin (physics)
Zdroj:	Journal of Experimental and Theoretical Physics. 131:302-310
ISSN:	1090-6509 1063-7761
Popis:	The static and dynamic properties of an anisotropic ferrimagnet, which has sublattices with S = 1 and σ = 1/2 and is characterized by a non-Heisenberg (spin bilinear or biquadratic) exchange interaction for the sublattice with S = 1, are studied. The anisotropy is determined by the Ising interaction of the sublattices. When the non-Heisenberg exchange interaction of the sublattice with S = 1 is taken into account, the anisotropic system is shown to be in a phase with vector order parameters (ferrimagnetic phase) and in a phase characterized by both vector and tensor order parameters (quadrupole-ferrimagnetic phase). The type of the phase transition between these phases and the condition of compensating the magnetic moments of the sublattices are determined.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::025f69f54a5479ed114171eb977b5d93 https://doi.org/10.1134/s1063776120060059 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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